Air washer



H. M. LEONARD ET AL Aug. 4, 1925. 1,548,420

AIR WASHER Original Filed April 16, 1921 2 Sheets-Sheet l fla 00 (D O G (094 12 a l I1]- (flflwmou Howard M Leonard Howard 6, Leonard Aug. 4, 1925. 1,548,420

H. M. LEONARD ET AL AIR WASHER Original Filed April 16, 1921 2 Sheets-Sheet 2 l 3 ll 3 l l 2 as I 1 c i I 4 I0 I 1 1 2o L Harvard M. Leonor i Howard 6.1.eonord claims.

Patented Aug. 4, 1925.

UNITED STATES 1,548,420 PATENT OFFICE.

HOWARD M. LEONARD AND'HOWABD G. LEONARD, 0F GARY, INDIANA.

AIR WASHER.

Application filed April 16, 1921, Serial No. 462,006. Renewed December 26, 1924.

To all whom it may concern:

Be it known that we, HOWARD M. LEON- ARD and HOWARD G. LEONARD, citizens of the United States, residing at Gary, county of Lake, State of Indiana, have invented certain new and useful Improvements in Air Washers, of which the following is a specification.

This inventionrelates to improvements in air Washers.

Our improved air washer is especially designed by us for use on internal combustion engines of tractors and machines operated where the air 1s llkely to carry dust and debris, such as chaff and the like, although desirable for use on internal combustion engines generally and in other relations.

The main objects of this invention are:

First, to provide an improved air washer which is highly eflicient in the removal of dust from the air.

Second, to provide an improved air washer which may be quickly disassembled for cleaning and readily reassembled.

Third, to provide an improved air washer which is very simple and economical in its parts and at the same time one in which the parts are not likely to be injured in use or in handling whendisassembled.

Further objects, and objects relating to structural details, will definitely appear from the detailed description to follow.

lVe accomplish the objects of our invention by the'devices and means described in the following specification. The invention is clearly defined and pointed out in the v A structure which is a preferred embodiment of our invention is clearly illustrated in the accompanying drawing, forming a washer.

Fig. II is a vertical central section on a line corresponding to line 22 of Fig. III. Fig. III is a horizontal section on a line corresponding to line 33 of Fig. I. r

Fig. IV is a detail section showing the parts disassembled in order to bettershow the structural details thereof.

In the drawing,similar reference characters refer to similar parts throughout the several views, and the sectional views are taken looking in the direction of the little arrOWSat the ends of the section lines.

Referring to the drawing, we provide adrum 1 having a reduced lower portion 2, there being a shoulder3 at the upper end of the reduced portion, the shoulder having a downwardly projecting flange 4. For convenience in manufacture, the reduced lower portion 2 of the drum is formed separately from its. upper portion, but these parts are secured together by soldering or the like.

The water tank 5 is of substantially the diameter of the upper part of the drum. The

upper end of this water tank is adapted to fit within the flange and rest against the shoulder embracing the reduced lower end and providing an annular enclosed space around the reduced lower end. 1

The water tank is provided with an inverted conical bottom 6. The tank is removably supported on the drum by means of the rods 7 engaged at their upper ends with the eyes 8 on the strap 9 secured on the sides of the drum. slotted lugs 10 adapted to receive these supporting rods. The rods have wing clamping nuts 11 so that the tank is removably secured and may be readily released for cleaning, the conical bottom being effective in collecting and retaining the sediment.

Above its water level the tank is provided with a series of air inlet openings 12.

The drum has a central discharge 13 at its upper end adapted to receive the coupling member 14 having a nipple 15 at one side to which a hose or other conduit leading to the erably removable so that it may be removed for flushing the screens. A capped filling opening 16 is preferably provided in addition to the discharge opening.

The lower end of the drum is open and has a series of screens 17 mounted therein. These screens have peripheral flanges 18 which serve as supporting and spacing means for the screens. An annular bead-like rib 19 is provided as a stop for the upper screen.

The screens are removably supported by means of the rod 20 which is arranged through the lower end of the drum below the bottom screen.

Below the discharge opening is a baffie pass around these baflies which serve to col lect anyexcess of moisture which the air of the drum, it being sucked or drawn into the drum so that the air passing through the openings will pass under the water. Consequently, when the engine is running some water willappear on thelgage 25. The air entering through the openings passes downwardly below the drum and, spreading out under the same, is drawn through the screens by which the air bubbles are effectivelybroken up so that the air is properly cleansed or washed. The water, being thus supported by the suction, is in a state of agitation so that the air. is effectively washed, that is, it is quite impossible for it to get through in the form of bubbles of suflicient size to carry any dust, dirt or solid substance with them. a

In practice there is quite a spray evident above the surface of the water but the upper screen is preferably so placed as to be above the normal water level and this results in preventing excess moisture being carried to the engine, the baflies being further effective for this purpose.

We have shown our improvements as we have embodied them in practice with highly satisfactorily, results, the structure shown being adapted for use on tractors. Certain modifications in structural details might be required to adapt our improvements to motor vehicles such as automobiles, but we have not attempted to illustrate such modifications or adaptations as we believe the disclosure made will enable those skilled in the a downwardly projecting flange at the upper end of its reduced portion, said drum being open at the bottom and having a central discharge at the top, a water tank embracing said reduced portion with its upper end fitting said flange, said tankihaving an invertedconica-l bottom'and air inlet openings above the normal water level thereof, means for removably securing said tank to said drum whereby the tank may be readily removed for cleaning, a plurality of screens provided with peripheral spacing and supporting flanges disposed in the lower end of said drum, said drum being provided with an annular internal rib constituting a stop for the upper screen, a locking rod disposed transversely of said drum below said screens whereby they are removably supported in the drum, and battle plates disposed in the upper end of said drum below its said discharge;

2. In an air washer, the combination of a vertically disposed drum having a reduced lower portion and ashoulder provided with a downwardly projecting flange at the upper end of its reduced portion, said di'umbeing open at the bottom and having a discharge at the top, a water tank embracing said reduced portion with its upper end fitting said flange, means for removably securing said tank to said drum whereby the tank may be readily removed for cleaning, a plurality of screens provided with peripheral spacing and supporting flanges disposed in the lower end of said drun'n'said drum being provided with an annular internal rib constituting a stop for the upper screen, and a locking rod disposed transversely of said drum below said screens whereby they are removably supported in the drum.

3. In an air washer, the combination of a vertically disposed drum having a. reduced lower portion and a shoulder provided with a downwardly projecting flange atthe upper end of its reduced portion, sa-id'drum being open atthe bottom and having a central discharge at the top, awatertank embracing said reduced portion with its upper end fitting said flange, said tank having air inlet openings above-the normal water level thereof, means for removably securing said tank to saiddrum whereby the tank may be readily removed for cleaning, screens removably mounted in the bottom of said drum, and battle plates disposed in the upper end of said drum below its said discharge.

4. In an air washer, the combination of a vertically disposed drum havingareduced lower portion and a shoulder provided with a downwardly projecting flange at, the upper end of its reduced portion, said drum being open at the bottom and having a discharge at the top, a water tank embracing said reduced portion with its upper end fitting saidflange, said tank having air inlet openings above the normal water level thereof, means for removably securing said tank to said drum whereby the tank may be readily removed for cleaning, and screens removably mounted in the bottom of said drum.

5. In an air washer,,the combination of a vertically disposed drum open at the bottom and having a discharge at the top, a water tank embracing the lower end of said drum and having air inlet openings above the normal water level thereof, means for removably securing said tank to said drum whereby the tank may be readily removed for cleaning, screens provided with peripheral spacing and supporting flanges disposed in the lower end of said drum, a locking rod disposed transversely of said drum below said screens whereby they are removably supported in the drum, and bafile plates disposed in the upper end of said drum below its said discharge.

In witness whereof, we have hereunto set '15 our hands and seals in the presence of two Witnesses.

HOWARD M. LEONARD. HOVARD G. LEONARD. Witnesses:

JAMns M. JOHNSTON, GRAoE LEONARD. 

